New Generation Dual Chamber Pump. Enlarged Surface Area on Radiator. New SickleFlow 120 RGB. Reinforced Sealing for Anti-Leaking Prevention. Update your Build with the newly designed pump that is built with PPS (Polyphenylene sulfide) and glass fiber for improved resistance to wide range of chemicals, moisture or water. Specially formulated Industrial Grade EPDM used for reinforced sealing for prevention of leakage.